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Mudjacking & Slab Jacking in Castle Pines, Colorado
Castle Pines, Douglas County

Castle Pines Mudjacking

A cement slurry pumped under a sunken slab, pushing it back to grade in an afternoon.

Wait for the next real August downpour, then go outside about ten minutes after it quits. The water tells you everything. Wherever a slab has dropped, a puddle sits there in a shape that never moves, and the joint beside it has a lip you can feel with the toe of a boot. Dry weather hides all of that. A hard rain draws you a map.

Mudjacking is how we fix what the map shows. We drill a pattern of small holes through the sunken concrete, pump a heavy sand-and-cement slurry into the void under it, and let hydraulic pressure raise the slab back where it belongs. No demolition, no forms, no new concrete curing in your driveway for a month. The panel you already own goes back to level and you walk on it the same day.

1-5/8"typical hole we drill through the slab
Same dayfoot traffic once the patches are set
24 hrsbefore vehicles cross a lifted drive panel
4"of settlement we can commonly recover

What the slurry is and why weight matters

The material is not mud in any romantic sense. It's a pumpable grout of screened sand, portland cement, and water, mixed thick enough to carry load and thin enough to travel sideways into every corner of a void. Once it sets it becomes a solid pad under your concrete, and it stays there.

That weight is the honest trade-off, and any contractor who won't discuss it isn't giving you the whole picture. Slurry is heavy. Pumped under a walkway sitting on decent soil, that's fine, because you're filling a hole that washed out and the ground below is happy to hold it. Pumped under a slab that dropped because the soil under it is genuinely weak, you've added load to something already struggling. So the first thing we do is figure out which of those two situations you have. Void from erosion, mudjacking is the right call all day. Soft native soil under a heavy structure, we'll point you somewhere else, and we've talked plenty of people out of a lift they were ready to buy.

Where slabs sink around a Castle Pines home

The settlement patterns we get called about most on these lots
SpotUsual causeWhat a lift does
Walk between the drive and the front doorBackfill along the foundation that was never compactedRestores the walking plane and stops water from running back at the house
Garage apron dropping away from the slabTrench for utilities settling under the apronCloses the step at the door and takes the bump out of the tire path
Patio panel next to the downspoutRoof water dumped in one place for years, washing fines outLifts the panel and re-pitches it away, though the downspout still needs extending
Hillside walk on a stepped lotSlope creep and runoff undercutting the low edgeRecovers grade, but only after we look at where the water is coming from
Pool or hot tub surround edgeCompaction shadow left by the original excavationLevels the transition and closes the trip lip at the coping
Puddle in the same spot every storm?

We'll come measure the drop and tell you whether lifting fixes it. Free, and no one leaves a sales folder on your counter.

How the lift actually goes

  • Grade shot with a laser so we know the exact drop, not a guess
  • Hole pattern laid out to spread pressure evenly under the panel
  • Holes cored, spoil vacuumed, nothing tracked across your stone or turf
  • Slurry pumped in stages while a crew member watches the joint rise
  • Lift stopped the moment the panel reads level, because overlifting cracks concrete
  • Holes packed and troweled flush, then color-blended to the slab
  • Joints cleaned and resealed so runoff stays out of the new fill

The Front Range calendar for a lift

We pump from thaw through late fall, and the busiest stretch runs from June into October. Autumn is the smart booking. Getting a slab back to grade before winter means snowmelt drains off it instead of pooling, freezing, and prying the joint open a little wider every night. A lip that's a nuisance in October is an ice patch in January.

Cold shuts the work down eventually. Slurry needs above-freezing ground to cure properly, and frozen soil won't let a panel move anyway, so a December call usually turns into a March appointment. Rain matters less than it does for a pour, since almost everything cures under the slab, but we still hold off during a soaking day. Saturated ground under a settled panel is unpredictable, and we'd rather lift into stable soil and hand you a result that stays put.

One more note specific to this town. Plenty of homes in The Village at Castle Pines and up around BellaMesa sit on graded hillside pads, and on those lots the settlement is almost always downhill of something. Fixing the slab without fixing where the water goes just resets the clock.

Castle Pines Mudjacking

Mudjacking in Castle Pines

Still unsure about something?

Call the crew at (303) 569-4046 and we will talk it through.

Rarely, and we'd rather be straight with you than take the deposit. The grout needs ground that isn't frozen, and a panel locked in frost won't rise evenly even if we could pump. Our season generally runs from spring thaw into late fall. Call in the winter anyway and we'll get you on the early schedule, plus we'll tell you how to keep a bad lip from icing over until then.

Roughly an inch and five eighths across, spaced in a grid so the pressure spreads instead of concentrating in one place. We pack them with a stiff mortar, trowel them flush, and tint the patch toward your slab color. Up close you can find them. From the front walk or a car window, most people can't.

It can, if the reason it sank is still happening. Grout fills the void; it doesn't reroute a downspout or fix a hillside that sheds water into your side yard. That's why we spend time on drainage before we spend time pumping. Fix the water and a lifted panel holds for years. Ignore the water and you'll be looking at the same puddle in a few seasons.

Almost always, and not by a small margin, because you're paying for material and a few hours of labor instead of demolition, haul-off, forms, steel, ready-mix, and a month of curing. We won't put a number in writing on a web page. What drives it is how far the slab dropped, how much void is under it, how many panels are involved, and how hard the area is to reach with a hose.

Usually yes. The rig parks on the drive and we run hose to the work, which is a big part of why lifting suits homes with finished landscaping. We lay protection on any turf or hardscape the hose crosses. If a gate is too narrow or the drop-off is steep, we'll walk the route with you before the appointment rather than showing up and improvising.

Walk on it as soon as the patches are troweled and set, usually within a couple of hours. Cars can go back on the next day. For anything heavy, a loaded trailer, an RV, a delivery truck, give it a few days so the grout has fully firmed under the load path. Normal snow removal is fine that first winter, though we'd keep chemical ice melt off the fresh patches.

Depends which came first. If the panel cracked because it lost support and dropped, lifting it and then sealing the crack is a reasonable fix. If it's broken into several loose pieces, there's nothing solid left to raise as a unit, and pumping under it just moves the fragments around. We'll tell you which one you're looking at before we quote anything.
Finished concrete project at a Colorado home

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